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Depositional characteristics and petroleum geological significance of wetland

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petroleum Science 2009年第4期6卷 347-353页

作者： Jin Zhenkui Gu Junfeng Su Nina Wang Zhaofeng Huang Xiaoping State Key Laboratory of Hydrocarbon Resources and exploration China University of PetroleumBeijing 102249China research institute of {2. exploration and Development Xinjiang Oilfield CompanyPetroChinaKaramayXinjiang 834000China

Wetland is a new type of sedimentary facies proposed for the first time in this paper. It is a type of sedimentary environment, transitional between land facies and water (sea or lake) facies. In this paper, wetland is redefined as “a type of sedimentary environments whose ground surface is flat and wet throughout the year, which may be covered with very shallow water (less than 2.m deep), and is covered with lush plant growth”. Wetland is reclassified into two types, swamp wetland (swamp in brief) and wet plain wetland (wet plain in brief). Swamp deposits are coal, while wet plain deposits are dark colored mudstones or silty mudstones rich in plant fossils and carbon debris. The deposits of wet plain are different from those of lake and floodplain in the abundance of plant fossils, color, resistivity well logging curve, and other sedimentary characteristics. In boreholes, resistivity logging can be used to distinguish between wet plain mudstones and lake mudstones. Understanding the sedimentary characteristics of wet plain wetland can help to identify wet plain deposits which were formerly classified as floodplain or lake deposits. This will help to reconstruct the palaeogeography and to understand the history of basin and climate evolution accurately, and is especially important in evaluation of the hydrocarbon generating potential of a basin. With the Jurassic Sangonghe Formation of the Yanqi Basin as an example, the identification characteristics of wetland are described.

关键词： Wetland wet plain Yanqi Basin Sangonghe Formation of Jurassic braided river delta

CONFIRMATION OF OSMOTIC HYDRATION WTH WATER-BASED FLUIDS

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西部探矿工程 1996年第5期8卷 38-45页

作者： Du Delin , Fan Shizhong (research institute of {2. exploration and Development,CNPC,beijing 100083 )

Ａｎｅｘｐｅｒｉｍｅｎｔａｌｔｅｃｈｎｉｑｕｅｈａｓｂｅｅｎｅｍｐｌｏｙｅｄｗｈｉｃｈｕｓｅｓｒａｄｉｏａｃｔｉｖｅｔｒａｃｅｒｓｔｏｍｏｎｉｔｏｒｔｈｅｔｒａｎｓｐｏｒｔｏｆｗａｔｅｒｔｈｒｏｕｇｈｓｈａｌｅｓ．Ｔ... 详细信息

Ａｎｅｘｐｅｒｉｍｅｎｔａｌｔｅｃｈｎｉｑｕｅｈａｓｂｅｅｎｅｍｐｌｏｙｅｄｗｈｉｃｈｕｓｅｓｒａｄｉｏａｃｔｉｖｅｔｒａｃｅｒｓｔｏｍｏｎｉｔｏｒｔｈｅｔｒａｎｓｐｏｒｔｏｆｗａｔｅｒｔｈｒｏｕｇｈｓｈａｌｅｓ．Ｔｈｅｒａｔｅｏｆｗａｔｅｒｔｒａｎｓｐｏｒｔｗａｓｒｅｄｕｃｅｄｇｒｅａｔｌｙｗｈｅｎｌｏｗ－ａｃｔｉｖｉｔｙｓｏｌｕｔｉｏｎｓｗｅｒｅｉｎｖｏｌｖｅｄ．Ｍｏｒｅｉｍｐｏｒｔａｎｔｌｙ，ｍａｓｓｆｌｏｗｗａｓｏｂｓｅｒｖｅｄｗｈｉｃｈｃａｎｏｎｌｙｂｅｅｘｐｌａｉｎｅｄａｓｏｓｍｏｓｉｓ．

关键词： osmotichydradation water-basedfluids radioactivetr

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库车坳陷两期成藏及其对油气分布的影响

石油学报 2003年第5期24卷 16-20,25页

作者：赵孟军卢双舫中国石油勘探开发研究院北京100083 大庆石油学院黑龙江大庆163318

对库车坳陷的成藏期次和成藏过程进行了研究 ,结果表明 ,库车坳陷具有两期成藏的地质条件。晚白垩世—早第三纪末在山前已经形成挤压背景下的构造圈闭 ,该时期的圈闭主要聚集源自三叠系烃源岩的油气 ;中新世以来是库车前陆盆地发育的时... 详细信息

对库车坳陷的成藏期次和成藏过程进行了研究 ,结果表明 ,库车坳陷具有两期成藏的地质条件。晚白垩世—早第三纪末在山前已经形成挤压背景下的构造圈闭 ,该时期的圈闭主要聚集源自三叠系烃源岩的油气 ;中新世以来是库车前陆盆地发育的时期 ,此时构造变形作用最强烈 ,形成的圈闭以聚集晚期生成的天然气为主。油气源对比结果和储层沥青、包裹体的研究为库车坳陷两期成藏提供了直接的地球化学证据 ,库车坳陷经历了早期油气的聚集、破坏和晚期天然气聚集、调整的过程。早期 (白垩纪末期—早第三纪 )成藏以侧向运移为主 ;晚期 (晚第三纪以来 ,主要是上新世—第四纪 )成藏则具有侧向、垂向运移并重的特点。

关键词：库车坳陷构造演化生烃史两期成藏成藏过程油气分布

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碳酸盐岩储层欠平衡钻井技术难点与对策

天然气工业 2004年第12期24卷 77-79页

作者：侯绪田中国石化勘探开发研究院德州石油钻井研究所

欠平衡钻井技术具有很强的地区适应性特点 ,不同的储层特性决定了不同的欠平衡钻井方式和技术特色。碳酸盐岩储层井眼溶洞、裂隙发育、置换性恶性漏失是欠平衡钻井工艺不容忽视的技术难点。文章在分析新疆塔北油田奥陶系碳酸盐岩储层特... 详细信息

欠平衡钻井技术具有很强的地区适应性特点 ,不同的储层特性决定了不同的欠平衡钻井方式和技术特色。碳酸盐岩储层井眼溶洞、裂隙发育、置换性恶性漏失是欠平衡钻井工艺不容忽视的技术难点。文章在分析新疆塔北油田奥陶系碳酸盐岩储层特点的基础上 ,对碳酸盐岩储层欠平衡钻井工艺存在的设备配套的多样化要求、欠压值设计难、井底负压控制难、置换性漏失时压井难和强行完井难等技术难点进行了详细分析。根据置换性漏失、强行完井施工等要求对井口、井下设备在标准配置的基础上进行了调整 ,依据碳酸盐岩储层、探井施工的特点提出了循环渐进、灵活的欠压值控制方法 ,改进的反循环压井技术比平推压井方法减少了压井作业对储层带来的伤害。

关键词：欠平衡钻井技术碳酸盐岩储层欠压值压井完井漏失储层特性裂隙发育奥陶系反循环

中国典型叠合盆地及其油气成藏研究新进展(之一)——叠合盆地划分与研究方法

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石油与天然气地质 2005年第5期26卷 553-562页

作者：金之钧中国石化石油勘探开发研究院

根据盆地形成演化历史及结构特征,将中国沉积盆地划分为单型与叠合型两大类。单型盆地的原型可以划分为克拉通盆地、拉张盆地和挤压盆地。2.或3种单型盆地的叠合可以形成若干不同的叠合盆地。叠合盆地油气成藏研究以成盆-成烃-成藏的... 详细信息

根据盆地形成演化历史及结构特征,将中国沉积盆地划分为单型与叠合型两大类。单型盆地的原型可以划分为克拉通盆地、拉张盆地和挤压盆地。2.或3种单型盆地的叠合可以形成若干不同的叠合盆地。叠合盆地油气成藏研究以成盆-成烃-成藏的动态过程分析为主线,在成盆方面,关键构造变革期的盆山耦合关系与盆地结构的形成和改造是研究的基础;在成烃方面,应加强古生代海相碳酸盐岩与优质烃源岩的发育环境、生排烃机理和效率的研究;在成藏方面,强调叠合盆地油气聚散机理与含油气系统演化。针对中国大地构造演化的多旋回性,采用波动分析方法是叠合盆地分析的有效方法之一。鉴于叠合盆地多源、多期油气运聚、调整成藏的特点,使用“元素-结构-功能”系统思想体系,提出了油气成藏体系的概念,采用“源-位”分类方案,建立了油气成藏体系的6种结构类型。

关键词：单型盆地叠合盆地波动分析油气成藏体系

Application of an analytic hierarchy process to hydrocarbon accumulation coefficient estimation

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petroleum Science 2010年第3期7卷 337-346页

作者： Gao Yongjin Liu Lifeng Liu Huimin Zheng Feifei Wu Li Zhou Jingjing Qu Dongfang State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Geoscience research institute Shengli Oilfield SINOPEC Dongying 257061 China Laboratory of Integrated Geology and Geophysics research China University of Petroleum Beijing 102249 China

The hydrocarbon accumulation coefficient is a key parameter in resources evaluation by genetic techniques. Methods of obtaining its value scientifically have always been an important factor influencing evaluation credibility. In this paper, the hydrocarbon accumulation system is evaluated quantitatively by establishing a hierarchy structure model based on an analytical hierarchy process. The hydrocarbon accumulation system of a higher exploration degree is selected as a calibration area and its hydrocarbon accumulation coefficient can be calculated using methods of hydrocarbon generation potential and reservoir-scale sequence. The hydrocarbon accumulation coefficient of a petroleum accumulation system can be gained by analogy of reservoir forming comprehensive evaluation results with the calibration area. The hydrocarbon accumulation coefficient of each petroleum accumulation system in the upper reservoir-forming combination of the Liaohe Western Sag can be obtained with this method. Practice shows that using the analytical hierarchy process to quantitatively evaluate the hydrocarbon accumulation system and then quantitatively predict the hydrocarbon accumulation coefficient decreases the influence of human factors in resources evaluation, and makes the resources assessment more objective and closer to the actual geological condition.

关键词： Hydrocarbon accumulation coefficient analytical hierarchy process hydrocarbon resourceevaluation hydrocarbon accumulation system Liaohe Western Sag

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对油气圈闭勘探决策理论和方法的讨论

石油学报 2003年第2期24卷 50-53页

作者：王川彭苏萍中国石化石油勘探开发研究院北京100083 中国矿业大学北京100083

在运用目前流行的勘探决策方法 (如决策树方法等 )进行勘探决策时 ,无论勘探工作处于何阶段 ,总是要考虑勘探工作全过程的投入和产出。但油气勘探是分阶段的 ,若要在每个阶段的勘探决策工作中都考虑勘探开发全过程的投入和产出 ,一是会... 详细信息

在运用目前流行的勘探决策方法 (如决策树方法等 )进行勘探决策时 ,无论勘探工作处于何阶段 ,总是要考虑勘探工作全过程的投入和产出。但油气勘探是分阶段的 ,若要在每个阶段的勘探决策工作中都考虑勘探开发全过程的投入和产出 ,一是会给勘探决策工作带来实际的操作困难 ,二是造成错误的勘探决策结果。若油气勘探工作在每个阶段都能以最小的成本实现每个阶段的工作目标 ,那么 ,油气勘探工作的全过程也就能以最小的成本 ,获得最好的结果。为此 ,提出了油气勘探决策工作应该分阶段进行 ,并提出了一种在勘探阶段以落实储量为目标而优选圈闭的勘探决策方法。

关键词：勘探决策油气圈闭地质风险勘探成本预期储量

THEORETICAL research ON THE CONTACT PROBLEM OF THE ROLLER BEARING IN ROCK-BITS

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THEORETICAL RESEARCH ON THE CONTACT PROBLEM OF THE ROLLER BE...

exploration risk evaluation using object-based modeling,an example from the Tertiary fractured play,western Qaidam Basin of china

第二届中日国际机械零件会议

作者： Wang Fangfei (research institute of {2. exploration & Development beijing china 100083) Luo Wei (University of {2. beijing china 102.00)

＜正＞The theoretical research on the contact problem for roller bearing in rock-bits is presented by using the numerical method of three dimension non-Hertzian elastic contact *** calculated results reveal that the early fatigue of bearing is due to the singularity of contact pressure towards the ends of roller with straight line profile.

关键词： Rock bit Roller bearing Contact problem

来源： cnki会议评论

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petroleum Science 2008年第3期5卷 195-202页

作者： Chen Zhuoheng Hu Suyun Jin Zhijun Pang Xiongqi Jiang Zhenxue Osadetz G. Kirk Geological Survey of Canada. Calgary. AB T2. 2.7. Canada research institute of {2. exploration ＆ Development. Petrochina. beijing 100083. china School of Resources and Information Technology China University of Petroleum. Beijing 102249. China

Geological risk evaluation reveals the uncertainty of converting an anticipated resource potential in an identified exploration target into an economic petroleum accumulation prior to drilling. Providing consistent and unbiased estimates of geological risk for all exploration targets in an area of interest is essential in risk evaluation. This paper discusses the potential use of an object-based stochastic procedure for geological risk evaluation at the play level. The object-based model of Super SD, as a data integration tool, can integrate geological information of petroleum system elements that control occurrences of petroleum pools with the spatial correlation characteristics of the discoveries in a play. Other information, such as the estimated total play potential and size characteristics, from conventional resource assessments can be also incorporated into the model as geological constraints. The uncertainty associated with the data and domain knowledge in the predicted pool locations is expressed as a probability map, representing the geological exploration risk of the play. By incorporating all available inibrmation and checking the consistency of models with geological constraints, the object-based model improves predictions of petroleum occurrences, thus enhancing the associated risk evaluation. The proposed method was applied to the fractured petroleum play of the western Qaidam Basin in northwestern china in order to illustrate the use of the object-based method for risk evaluation.

关键词： exploration risk mapping stochastic simulation. Qaidam Basin